Spring bed-bottom



(No Model.)

W.I SCHMITT. SPRING BED, BOTTOM.

UNITED STATES PATENT OEEICE.

WILHELM SCHMITT, OFBALTIMORE, MARYLAND.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 428,637, dated May 27, 1890.

Application iiled October 23, 1889. Serial No. 327,968. (No model.)

v invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is directed, preferably, to al spring bed-bottom or mattress composed of two or more sections, each end or side of either of which sections may be attached to either end or side of the other section or sections.

To this end the ,invention consists in connecting the sections by removable couplings connecting the springs at the adjacent edges of the sections.

It moreover consists in making these couplings similar in shape to the permanent links connecting the springs of the mattress, thus making, to all intents and purposes, one continuous unbroken mattress without any hard or weakened middle line.

It moreover consists in the peculiar construction of the removable couplings and in other valuable details of construction hereinafter set forth.

In the drawings, Figure l is a plan of the bed-bottom embodying vmy invention and ready for use; Fig. 2, a side elevation thereof, partlyT in section; Fig. 3, a perspective view of one of the coils. Figs. 4 and 5 are perspective views of the couplings in locked and open positions, respectively; and Fig. 6 is a detail View showingl the arrangement of the top o f the coils.

The body ofthe bed-bottom consists of the two sectionsA and A', each the counterpart of the other, the ends of which, of course, are also counterparts and composed of spiral springs or coils a of the usual form, except that the outermost coils a are provided at the top and bottom turn with a loop b, formed integral with the coil. The coils are arranged, as

usual, in substantially parallel rows and permanently connected at top and bottom by links c, as shown, in double rows substantially parallel. The two sections are united by detachable links or couplings C, (shown enlarged in Figs. 4t and 5,) whose form essentially is that of a piece of spring metal havingits ends d and d bent inwardly and to lie approximately flat upon the main body of said piece, but leaving` suiiicient opening to permit the hooked ends thus formed to be engaged with or disengaged from the coils a. When engaging the coils of the adjacent edges of the sections, the couplings are locked by the slid.- ing piece or band cl3.

D are rods provided with screw-threaded ends d4, adapted to receive the interiorlyscrew threaded securing heads d5. Vhen the two sectionsA and A are united, these rods are passed through the loops b of the coils and secured against slipping out by the heads d5. These rods serve to give the necessary stiffness to the bed and preserve its proper shape.

It will be observed that the couplings C when applied and locked are practically duplications of the permanent links. Thus the mattress, though composed of two sections, forms, to all intents and purposes, one continuous unbroken mattress, having neither a break nor a hard ridge in the center. This is a material advantage over all other sectional beds in my knowledge.

When the bed-bottom has become worn and sagged in the center, the rods D are removed and the sections are separated and the outer ends thereof A and AXX are brought adjacent to each other to non7 form the inner edges, and the detachable couplings applied. The bed-bottom is thus practically renovated, inasmuch as the outer edges suffer little wear, as is well known. The bed and bottom are thus made to do service practically twice as long as the ordinary form not made in sections.

Although Ihave shown my bed-bottom sections as interchangeable as to their ends, it is manifest that the same may be made so interchangeable with respect to the sides as well-that is to say, either side of one section may be connected to either side of the other section by detachable links or couplings, asl

shown. A

What I claim, and desire tosecure by'Letters Patent, is as follows:

1. A mattress composed of two sections, each consisting of coils permanently connect- IOO ed by links, in combination with detachable couplings forming' the links for the adjacent coils when the sections are united, all substantially as described.

2. A coupling' for spring-mattress sections, consisting` of a strip ol spring,` metal, the ends of which are bent inwardly and substantially parallel with the main body, inA combination with a single sliding band or latch, all substantiallgT as described.

A spring` mattress or bed-bottom consisting of a series ot springs united by links or couplings, the outermost springs onv two opposite sides being` provided with loops, in combination with rods passing through said loops and secured against sliding out from saidv loops, substantially described.

4f. A springr mattress or bed-botto1n consisting ol a series of springs arranged substantially as shown and united by links or coup lings, the outermost springs on two opposite sides being,l provided with loops at top and bottom, in combination with rods passing through said loops, two on each side of the mattress, and secured against sliding;` out from said loops, substantially as described.

A mattress consisting 01"; two sections composed of coils connected by links or couplings and united liydetaehable couplings, the outermost coils of which are provided with loops, in combination with rods passing through said loops and secured against sliding' out from said loops, all substantially as described.

G. A spring mattress or bed-bottom consisting 01:' a series of springsr connected by links, the outermost springs at two opposite sides being provided with loops at top and bottom, in combination with rods passi ng through said loops, said rods being screw-threaded at the ends and provided with securing-heads at their ends, substantially as described.

In testimony whereof l ailix my signature in presence oftwo witnesses.

VWILHELM SUMMIT' Witnesses: f JonN Korir., llaimanrnlu Sennrm. 

